Polymers having terminal hydroxyl aldehyde, or alkylamino substitutents and derivatives thereof

Abstract

A polymer having a terminal hydroxyl, aldehyde or alkylamino substituent which may be used directly or in a derivative form as a dispersant for both fuel and lubricating oil compositions, wherein the polymer has a M n of about 300 to 10,000, and is derived from a polyolefin which is derived from a polyene (diene, e.g.), monomer of the formula H 2 C═CHR 4 , wherein R 4 is hydrogen or a straight or branched chain alkyl radical. Preferably, the polyolefin has at least about 30% terminal vinylidene unsaturation. Particularly desirable amine derivatives can be formed by either a single step aminomethylation process or a two step hydroformylation and reductive amination process.

What is claimed is: 
     
       1. A polymeric hydroformylation alcohol or aldehyde reaction product formed by the reaction of: a polyolefin having a Mn of about 300 to about 10,000 polymerized from a polyene and a monomer of the formula H 2  C═CHR 4 , wherein R 4  is hydrogen or a straight or branched chain alkyl radical, in the presence of a metallocene catalyst;   hydrogen; and   carbon monoxide in the presence of a hydroformylation catalyst.   
     
     
       2. The polymeric hydroformylation reaction product according to claim 1 wherein said polyolefin has at least 30% terminal vinylidene unsaturation. 
     
     
       3. The polymeric hydroformylation reaction product according to claim 2 wherein said polyolefin is polymerized from alkene and α-olefin monomers. 
     
     
       4. The polymeric hydroformylation reaction product according to claim 1 wherein said hydroformylation catalyst is a rhodium, ruthenium, or rhenium-containing catalyst.